Killer Samurai Sudoku - Offers printable samurai sudoku puzzles for download. Also provides rules and solution strategies.
Math Games: Sudoku Variations - Offers detailed descriptions and illustrations of Sudoku variations, including Diagonal, Cubical, Even-Odd, and hybrids. Also includes a short history.
Mathematical Recreations - Custom Word Doku puzzles devised by Steve Schaefer. Features an entire sentence embedded into the puzzle.
Sudoku Samurai - Offers printable sudoku samurai puzzles for download.
Sudoku-Ball - A three dimensional version of the puzzle. Includes game rules, online version and news.
Sudokuto - Two-player variant. Offers several board sizes to play against the computer. [English/Norsk]
Last update: 8:09 PT, Friday, August 31, 2007
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